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src/composables/useOnlineConnection.ts

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+import { useMessage } from 'naive-ui'
+import { onMounted, onUnmounted, ref } from 'vue'
+import { DEFAULT_SERVER, type OnlineIntent, type OnlineState } from '../types/online'
+
+export function useOnlineConnection() {
+  const bridge = window.screenBridge
+  const message = useMessage()
+  const isReady = ref(false)
+  const state = ref<OnlineState>({
+    server: DEFAULT_SERVER,
+    authenticated: false,
+    remembered: false,
+    busy: false,
+    canCancel: false,
+    games: [],
+    playlists: [],
+    screenId: null,
+    soundEnabled: null,
+    connection: 'disabled',
+    error: '',
+    notice: '',
+    progress: null,
+    preparation: { active: false, completed: 0, total: 0, downloadedBytes: 0, error: '' },
+    packagesRevision: 0,
+  })
+  const isBusy = ref(false)
+  let timer: ReturnType<typeof setInterval> | undefined
+  let refreshing = false
+  function accept(value: OnlineState) {
+    state.value = value
+    isReady.value = true
+  }
+  async function refresh() {
+    if (!bridge || refreshing) return
+    refreshing = true
+    try {
+      accept(await bridge.onlineState())
+    } catch {
+      /* Закрытие приложения не влияет на подготовленные материалы. */
+    } finally {
+      refreshing = false
+    }
+  }
+  async function run(intent: OnlineIntent) {
+    if (!bridge || isBusy.value) return
+    isBusy.value = true
+    try {
+      accept(await bridge.onlineAction(intent))
+    } catch (error) {
+      message.error(error instanceof Error ? error.message : 'Действие не выполнено')
+    } finally {
+      isBusy.value = false
+      await refresh()
+    }
+  }
+  async function cancel() {
+    try {
+      await bridge?.onlineAction({ action: 'cancel' })
+    } catch (error) {
+      message.error(error instanceof Error ? error.message : 'Не удалось отменить загрузку')
+    }
+  }
+  onMounted(async () => {
+    await refresh()
+    timer = setInterval(() => {
+      void refresh()
+    }, 500)
+  })
+  onUnmounted(() => clearInterval(timer))
+
+  return { state, isReady, isBusy, run, cancel }
+}